:root{
  --bg:#050914; --panel:rgba(14,21,41,.86); --panel2:rgba(18,28,53,.94);
  --line:rgba(98,142,255,.16); --line2:rgba(255,255,255,.06);
  --text:#edf4ff; --muted:#91a5d3; --blue:#44a8ff; --cyan:#00d8ff;
  --green:#2ae58b; --red:#ff607c; --yellow:#ffcb5e; --shadow:0 18px 60px rgba(0,0,0,.42)
}
*{box-sizing:border-box} html,body{height:100%}
body{
  margin:0; font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif; color:var(--text);
  background:
    linear-gradient(rgba(5,9,20,.74),rgba(5,9,20,.92)),
    url('../img/background.svg') center/cover fixed no-repeat,
    linear-gradient(180deg,#081021,#050914);
}
a{text-decoration:none;color:inherit} button,input,select,textarea{font:inherit}
.bg-grid{position:fixed;inset:0;pointer-events:none;background:
linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
background-size:44px 44px;mask-image:linear-gradient(180deg,rgba(255,255,255,.25),transparent 95%)}
.layout{display:grid;grid-template-columns:300px 1fr;gap:20px;min-height:100vh;padding:22px}
.glass{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
.sidebar{border-radius:30px;padding:20px;display:flex;flex-direction:column;gap:18px;min-height:calc(100vh - 44px);position:sticky;top:22px}
.brand{display:flex;gap:14px;align-items:center}.logo{width:60px;height:60px;border-radius:18px;display:grid;place-items:center;font-size:30px;background:linear-gradient(135deg,rgba(68,168,255,.28),rgba(0,216,255,.08));border:1px solid rgba(98,142,255,.24);box-shadow:0 0 26px rgba(68,168,255,.18)}
.brand h1{margin:0;font-size:20px}.brand p{margin:4px 0 0;color:var(--muted);font-size:13px}
.search input{width:100%;padding:14px 16px;border-radius:16px;border:1px solid var(--line2);background:rgba(255,255,255,.03);color:var(--text)}
.nav{display:grid;gap:10px}.nav a{padding:14px 16px;border-radius:18px;background:rgba(255,255,255,.02);border:1px solid transparent;font-weight:800;display:flex;align-items:center;gap:12px;transition:.2s}.nav a:hover,.nav a.active{background:linear-gradient(90deg,rgba(68,168,255,.18),rgba(0,216,255,.07));border-color:rgba(98,142,255,.22);transform:translateX(2px)}
.side-card{margin-top:auto;padding:18px;border-radius:22px;background:rgba(255,255,255,.03);border:1px solid var(--line2)}
.pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;font-size:12px;font-weight:900}.pill.online{background:rgba(42,229,139,.12);color:#a8ffd4}.pill.offline{background:rgba(255,96,124,.12);color:#ffd2db}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 14px var(--green)}
.meta{display:grid;gap:10px;margin-top:14px}.meta div{display:flex;justify-content:space-between}.meta span{color:var(--muted)}
.main{display:grid;grid-template-rows:auto auto 1fr auto;gap:18px}
.topbar,.hero,.card,.footer,.modal-content,.toast,.auth-card{border-radius:28px;padding:22px}
.topbar{display:flex;justify-content:space-between;gap:18px;align-items:center}.eyebrow{color:#8eb2ff;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.14em;margin-bottom:8px}
h1,h2,h3,p{margin:0}.sub{margin-top:8px;color:var(--muted)}
.actions,.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{padding:12px 18px;border-radius:14px;border:none;color:white;font-weight:900;cursor:pointer;display:inline-block;text-align:center;box-shadow:0 10px 24px rgba(0,0,0,.24);transition:.18s transform}.btn:hover{transform:translateY(-1px)}
.btn-blue{background:linear-gradient(90deg,rgba(54,118,255,.96),rgba(0,194,255,.64))}
.btn-green{background:linear-gradient(90deg,rgba(9,139,74,.96),rgba(42,229,139,.58))}
.btn-red{background:linear-gradient(90deg,rgba(176,28,54,.96),rgba(255,96,124,.58))}
.btn-yellow{background:linear-gradient(90deg,rgba(173,119,11,.96),rgba(255,203,94,.58))}
.btn-ghost{background:rgba(255,255,255,.05);border:1px solid var(--line2)} .btn.full{width:100%}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
.hero{position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-50px;top:-50px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(68,168,255,.16),transparent 70%)}
.kpis{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.kpi{padding:18px;border-radius:22px;position:relative;overflow:hidden}.kpi span{display:block;color:var(--muted);font-size:13px}.kpi strong{display:block;font-size:32px;margin:8px 0 4px}.kpi small{color:#97f2c5;font-weight:800}
.content{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.col{display:grid;gap:18px}
.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:14px}.panel-head small{color:var(--muted)}
.chart-wrap{height:320px}
.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px 10px;border-bottom:1px solid rgba(255,255,255,.07);text-align:left;vertical-align:top}.table th{font-size:13px;color:#9fb3df}
.list{display:grid;gap:12px}.item{padding:14px 15px;border-radius:18px;background:rgba(255,255,255,.03);border:1px solid var(--line2);display:flex;justify-content:space-between;gap:12px}.item small{display:block;color:var(--muted);margin-top:4px}
.badge{padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.06);font-size:12px;font-weight:800}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.field{display:grid;gap:8px;margin-bottom:14px}
label{font-size:14px;font-weight:800;color:#d7e4ff} input,select,textarea{width:100%;padding:14px 16px;border-radius:16px;border:1px solid var(--line2);background:rgba(255,255,255,.04);color:var(--text);outline:none} textarea{min-height:120px;resize:vertical}
.alert{padding:14px 16px;border-radius:16px;margin-bottom:16px;font-weight:800}.alert.success{background:rgba(42,229,139,.12);border:1px solid rgba(42,229,139,.2);color:#c0ffe1}.alert.error{background:rgba(255,96,124,.12);border:1px solid rgba(255,96,124,.2);color:#ffc6d0}
.code{padding:16px;border-radius:18px;background:rgba(0,0,0,.24);border:1px solid var(--line2);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;overflow:auto}
.footer{color:var(--muted);font-size:14px}
.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(560px,100%)}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.56);display:none;align-items:center;justify-content:center;padding:20px;z-index:50}.modal.show{display:flex}
.modal-content{width:min(720px,100%);position:relative}.close{position:absolute;right:16px;top:16px;background:transparent;border:none;color:#fff;font-size:24px;cursor:pointer}
.toast-wrap{position:fixed;right:20px;bottom:20px;display:grid;gap:12px;z-index:60}.toast{background:linear-gradient(180deg,rgba(15,24,46,.92),rgba(18,28,53,.96));border:1px solid var(--line);display:none}.toast.show{display:block}
.drag-area{display:grid;grid-template-columns:1fr 1fr;gap:14px}.dropzone,.dropcol{padding:14px;border-radius:18px;background:rgba(255,255,255,.03);border:1px dashed rgba(255,255,255,.16);min-height:220px}
.chan{padding:12px 14px;border-radius:14px;background:rgba(68,168,255,.10);border:1px solid rgba(68,168,255,.24);cursor:grab;margin-bottom:10px}
.progress{height:12px;border-radius:999px;background:rgba(255,255,255,.05);overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.channel-tree ul{list-style:none;padding-left:16px;margin:8px 0}.channel-tree li{padding:8px 0;color:#dce8ff}
.file-list{display:grid;gap:10px}
@media (max-width:1450px){.kpis{grid-template-columns:repeat(3,1fr)}.content,.hero-grid{grid-template-columns:1fr}}
@media (max-width:1100px){.layout{grid-template-columns:1fr}.sidebar{position:relative;top:0;min-height:auto}}
@media (max-width:760px){.kpis,.form-grid,.drag-area{grid-template-columns:1fr}.layout{padding:14px}.topbar{flex-direction:column;align-items:flex-start}}